High-velocity Impact Location on Aircraft panels Using Macro-fiber Composite piezoelectric Rosettes

Augusto Ajovalasit, Leonardo D'Acquisto, Salvatore Salamone, Jennifer Rhymer, Hyonny Kim, Francesco Lanza Di Scalea, Ivan Bartoli

Risultato della ricerca: Articlepeer review

55 Citazioni (Scopus)

Abstract

In this article, an approach based on an array of macro-fiber composite (MFC)transducers arranged as rosettes is proposed for high-velocity impact location on isotropic andcomposite aircraft panels. Each rosette, using the directivity behavior of three MFC sensors,provides the direction of an incoming wave generated by the impact source as a principalstrain angle. A minimum of two rosettes is sufficient to determine the impact location byintersecting the wave directions. The piezoelectric rosette approach is easier to implement thanthe well-known time-of-flight-based triangulation of acoustic emissions because it does notrequire knowledge of the wave speed in the material. Hence, the technique does not have thedrawbacks of time-of-flight triangulation associated to anisotropic materials or tapered sections.The experiments reported herein show the applicability of the technique to high-velocityimpacts created with a gas-gun firing spherical ice projectiles.
Lingua originaleEnglish
pagine (da-a)887-896
Numero di pagine10
RivistaJournal of Intelligent Material Systems and Structures
Volume21
Stato di pubblicazionePublished - 2010

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.2500.2500???
  • Mechanical Engineering

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